I didn't even put a price I'm looking to spend in my ad.
I picked up another breeder (critter cage one) for $30 or so back 2 years ago from a wanted ad. I ended up becoming friends with the person I bought it from as well, and we now trade pet sitting and purchase supplies/feeders together.
Just make sure you are getting a good deal. Petco does $1/gallon tank days in August usually. I sold off my critter cage because I wanted something that can hold water if need be. I picked up another 40 gallon breeder on this sale day. I try to make sure I have water holding tanks, as if I have something go wrong with the fish tank, the reptiles can be moved to rubbermaid containers for a few days. I've had to do it in the past, so I always try to stay prepared.
I also check craigslist in places I'm going on vacation to, or will be traveling through. It's a habit I guess. I scored a 18x18x24 Exo-Terra open front enclosure for $60 with light hood in January (it's for the Tokay), retails for like $150+.